Sanitary pump.



A. J. McCALL.

SANITARY PUMP.

APPLICATION FILED MAY 28. I913.

Patented Jan. 23, 1917.

FIG, 1. WITNESSES.

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ANDREW J. MoCALL, or s'r. tours, MISSOURI.

SANITARY PUMP.

Application filed May 28, 1913.

To all whom it may concern Be it known that I, ANDREW J. MoCALL, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented a new and useful Sanitary Pump, of which the following is a specification.

This invention relates to an improvement in a sanitary beer pump, and has for its ob ject a water container and an air container suitably connected together, and means for forcing the air into the water container, and permitting the air to percolate and become purified before entering into the air container, and a pipe connection by which the purified air is connected to the container from whichthe contents are to be withdrawn.

Figure 1, is a side elevation of my complete invention. Fig. 2, is a central vertical sectional view of the same.

Referring to the drawings in detail, I provide a container or tank B, mounted upon suitable standards, and in said container is placed a certain amount of water, which water is admitted into the container by the pipe A. The horizontal portion of said pipe extending into the container near the bottomand said pipe is provided with a plurality of perforations through which the air is forced under pressure and permitted to percolate upwardly through the water lo cated in the container.

The pipe A, is used for two purposes, one for permitting the water to be fed into the container, and when this has been done the water connection is out off and air under pressure is properly connected and per mitted to enter in said pipe and back pres-- sure of either air or water is prevented by means of a check valve located in the horizontal section of said pipe.

In order to limit the height of the water in the container I provide a cock C, which is open at the time of filling the container with water. This cock acts as an indicator, and when the water seeps through the same it is a reminder and the water supply is then cut off and the cock closed. At this juncture the air under pressure is admitted into the pipe A.

Above the container B, is located an air container E. The two being connected together by a pipe rovided with a valve D,

and through this plpe the purified air is per- Specification of Letters Patent.

Fatented Jan. 23, 1917.

Serial No. 770,531.

mitted to enter from the container B, to the container E, and on the container E, is located a pipe connection which leads to the beer keg or liquid container to which the purified air under pressure is conveyed so that the contents can be elevated to the bar or other place where the liquid is designed to be drawn.

On the pipe connection is located an air gage F, which indicates the air pressure; in the pipe connection is also located a cut-off valve by which the air is cut ofi when changing the connection from one container to another. In the pipe connection, and on the opposite side of the valve is located a gage K, which indicates the pressure in the container, and the end J of said pipe connection leads to the keg or container to which the air is to be supplied. I

On the bottom of the container B, is located a cap H, which closes an outlet through which the water in the container B, can be withdrawn whenever it is desired to fill the container with a new supply; it is also for the purpose of cleansing the interior of said container.

Having fully described my invention what I claim is:

1. In a sanitary beer pump, the combination of a cylindrical vertical mounted water container, of an air tank located above the same; a pipe connection connecting both the tank and container, a valve located therein; a combination air and water supply pipe leading into the water container for supplying the water tank with water, the inner end of said pipe being perforated through which the water or air may be permitted to enter into said tank; and a pipe connection located on the top of the air tank by which the purified air is conveyed to the proper source of supply, substantially as specified.

2. A device of the class described, comprising a vertically mounted water compartment in combination with a vertically mounted air container; a pipe connection connecting both containers, a valve located therein for regulating the passage from one container to the other; a drain tap located at the bottom of the water container and normally closed by a cap; a combination water and air supply pipe leading into the water tank, a check valve located in the pipe connection, the inner end of the pipe being perforated and through which the Water or container for regulating the height of the the air may be permitted to pass into the conwater container, substantially as speclfied.

tuiner' and a overnor controlled pipe @011- L T nectioii located on the top of the air con- ALDREV MCOALL' tainer through which the air is directed to V Witnesses:

the proper source of supply, and an over- HENRY RITCHEL', flow cock located near the top of the water v WM. H. LANG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentn,

Washington, D. 0. 

